Valve



Qct. 27 1925.

M. LOMBARDI VALVE `ing drawing, 1nV which:

Patented Oct. 27, 1925.

UNITED STATES y 1,558,992 TENT OFFICE.

MARIO LOMBARDI, or NAPLES, ITALir.

Application led January 29, 1924. Serial No. 689,353. i

To all whom t may concern: j

Be it'known that I, MAnio LOMBARDI, a

subject' of the King` of Italy, residing at accompany- Fig. 1 is a partly sectionalA side view, Fig. 2 atop view,

Figa?) a sectional view made on a plan 'normal to that ofY the section sho-wn in Fig.

1, but showing the plug in'its place,

Fig. 4 is a side view corresponding to the positionvo't Fig. 1,

Fig. 5 shows the plug in a side and top view,

Fig. 6 is a view corresponding to Fig. 2, but having the cover mounted 0nv its place,

Fig.l 7 shows this cover,

Fig. 8 is the'packing pressing sleeve,

Fig. 9 is the hand wheel.

The body oit' the cock has preferably the form shown in the drawingl and is made with an internal threaded part 2 by which the cock is fixed to the hot water or steam conduit, and an external thread 3 for fixing it on the radiator.

The internal chamber of the body of the cock 1 is such as to be adapted to tightly receive the conical plug. The upper part oit the body is made with the threads 4 and the two small threaded holes 5 and 6.

The plug 7 is conical as shown in the drawing; it is hollow and has a trapezoidal opening 8, and its stem 9 is square in section in order to t the hand wheel. The said plug is also supplied with a small stud 10 on its upper surface.

The pressing ring 11 is made with two small grooves 12 and 13 for the screwing lev. f

The cover 14 is supplied with two arcshaped slots 15, 16 and with acentral opening 17.

Vhen mounting the cock, the plug 7 is first put into its seat in the body 1, a leather washer 2O being set into the resulting annular groove. The pressing ring is then, inserted and tightly screwed home, in order to press on .the Washer and prevent position.

leakage ofwater or steam from the lower v chamber. The cover 14 is then put into its place, care being taken that the small stud 9 enters into the central opening 17. This willhave for consequence that the cuts 15, 16 will be in correspondence with the holes 5, 6 of the body, in which screws 21, 22 are set serving to fix the cover in its right The hand'wheel 18 is finally tit on the square part 9 of the plugs stem to which it is'xed by means ofthel screw V24 and the washer 23.

The adjustment ot' thek cock is obtained in a very simple way as follows: vIt must be noted first of all-that, in order to go from the opening 8 of said plug to the opening 19 ot the part 3 of the bodyl 1. lWhen the cover 14 is mounted on its place, the angular the conduit to the radiator, the waterorf' steam pass through the plug 7 and -from rotation of the plug will be limited hyY the stud 10 to the width of they opening17, which permits the said plug to rotate a fourth of a circle, which will be always the same whichever the position of the cover 14. This arrangementfwill therefore ren? der imposslble to force the cock one direction or the other beyond the said limit. Vhen the cover 14 is so adjusted that the ends 25, 26 of the cuts 15, 16 will be in contact with the screws 22, 21 respectively-and that the latter are screwed down well homethe cock plug will be tree to rotate of one fourth ot a circle and will allow a full passage to the water through the opening 8 which will find itself in perfect and complete correspondence with the opening 19 in the body 1. On turning now the hand wheel, the plug will rotate until the stud 10 contacts with the end 28 of the opening 17 when the passage of the Vheatingr means will be completely stopped.

Should, on the contrary, the cover be so lixed that the screws 21, 22 contact with the ends 29, 30 of the cutsV 15,A 16 respectively, then, when turning the plug, the openings 8 and 19 will be prevented from coming one opposite the other, and the hot water or steam will not be allowedv to pass on to the radiator.

If however the cover 14 is fixed in any other intermediary position whatever, the plug will always be able to rotate one fourth of a circle, but the openings 8 and 19 will only partially correspond to one another, so that thepassage .of the water or steam will partially be cut. This allows to originally set the cock on the most suitable position with regard to the heating effect, and, once such right position of the cover found out, the screws 21, 22 must be screwed home, and the hand Wheel put into its place in Which it Will completely conceal the upper part of the cover 14k Withl its screws, so that it Will be impossible to alter the adjustment. The partial or full rotation of the hand Wheel one side or the other will then be enough 'for regulating the heating according to need.

Having so fully specified and illustrated the nature of my invention and in what manner it must be performed in order to obtain the results it aims at, I now declare that What I claim is:

1. A valve including a tubular body provided With an opening in its Wall, aplug` in the body having a passageway adapted to lead Huid from the interior ot the body to said opening, said plug having a stein and a stop pin projecting beyond one end of the body, a cover arranged at the saine end oit the body and provided with arcshaped slots, fastening elements passing through the slots and extending into the body tor adjustably holding the cover in position, said cover having an opening to receive the stem of the plug and the cover also having stop` surfaces arranged to contact With the stop pin on the plug for limiting the rotation of the latter, and a handle arranged on the stem in close proximity to the cover-and covering the cover to prevent any one from tampering with the fastening elements Without irst removing the handle.

2. A valve including` a tubular body having a portion of its bore of conical shape and provided With a poi-t leading from said bore to the exterior ot' the body, a plug having a frustro-conical portion fitting in the conical portion of the body and provided with a passageway for leading fluid from the bore to said port, said plug also having a cylindrical portion and a stem, the' body having internal screw-threads at its upper end, a Washer arranged between the body and plug, a threaded'ring surrounding the cylindrical portion of the plug, engaging said threads on the body and bea-ring Nagainst the Washer, a cover fitting on one end ot the body and provided With a central aperture and arc-shaped slots, screws passing through said slots and eX- tending into said body for adjustably holding the cover on the body, said plug having a Astop element adapted to Contact with certain edges of the aperture in the cover for limiting the rotation of the plug, and a handle ixed on the stein exteriorly of the body and lying suli'iciently close to the cover for concealing the latter to prevent said screws from being operated Without removing the handle.

In testimony whereof I have signed my name to this specification.

ING. MARIO LOMBARDI. 

